Car-roof construction.



F. MATHEWS.

CAR ROOF CONSTRUCTION. APPLICAHON FILED IULY is. 1912.

1,137,347. Patented Apr. 27, 1915.

5 SHEETS-SHEET I- F. MATHEWS.

CAR ROOF CONSTRUCTION.

APPLICATION FILED 1uLv15. 1912.

Patented Apr. 27, 1915.

5 SHEETS-SHEET 3.

F. MATHEWS.

CAR ROOF CONSTRUCTION.

APPLICATION FILED 1uLY15,1912.

1 1 37,347. Patented Apr. 27, 1915.

5 SHEETS-SHEET 4.

F. MATHEWS.

CAR ROOF CONSTRUCTION.

APPLICATION FILED uzvls, 1912.

Patented Apr. 27, 1915.

SHEET 5.

ENITE' ams FATE me'rHEws, OF CHICAGO,

QFEFECE. j

ILLINOIS, ASSIGNOR TO CLINTOF c. MURPHY, or cmcaeo, ILLINOIS. a

CAR-ROOF CONSTRUCTION Specification of Letters Patent. Patented Apr, 27 1915,

Application filed July 15. 19l2. Serial No. 709.434.

To all whom it may concern: Be it known that I, FRED MATHEWS, a citizen of the United States, residing at Chicage, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Car-Roof'Construotions, of which the following is a specification. p v

{My invention relates to the construction of" railway car roofs, and'the invention hasfor itS'ObIBCl'; to provide'anew and improved i'oofsuitable.particularly for box cars which may be made entirely O'f-fm'etal.

- 'A further object is toprovide a roof in which the, roof sheets; and desired also the purlins, have a loose'or'floating relation,

with'the car-lines so that they have somecapa'ci't; ffor shiftin ggwhnthe car weaves. At

tlfeisagrfe tiifieithefOr-ni' and construction of .theicarlijieiis vsuchasjto. reinforce and rigidify' the tee-s am; the tendency to weave is checked so'far as fit is possibleto check it. By giving the roof sheets and purlins a floating or impositiveengageinent with the rest of the bodyl structur'e of the. car the roof. has .afcertairi flexibility which prevents it fibril being in'jure'd or destroyed under the weaving strains which at best can neverbe entirely prevented.

- .Iroof which will hepei fectly waterproof and I willhelveyrijfi strong an A further-object isto provide-a metal car also impervious to d ust, sparks, and'the like. A further Object is to rovide a roof which durable and at the ,same" timelight and comparatively iiiexpeh- I s'i've to build.

A f urther.objectisi'to provide a car roof 'constructionhaving. the new and'improved features and consisting v of the novel devices,

arrangements and combinations shown in 'the glrawings and which will be hereinafter 'ds.cribed=and .claiznedu The invention is illustrated,in apreferredf embodiment, in the accompanying drawings, .wherein I I 'Figure l is afragmentary;plan.view of the. structure, certain "parts being broken away'for convenience of illustration. Fig.

"2-iisia'fsectio nal view taken on line 2-2 of Fig 1, looking in the direction Of'the arrows. Fig. 3 isan. enlarged detail section taken on the same line, showing'more clearly V4 the-constructions and arrangeme'nts at one sideof the car. Fig. 4c isa side elevation. 5 is a. sectional view taken on;line'5- 5 tively.'

the mechanic, upon cars o number of carlines 7A, pie-1m r sheets C, C androof sheet cap The-.carr,

11 is a view, in perspectiveiofapreferrech form of bolt for securing'the roof sheet cap to the carline, and Figs. 12 andll ar views, in perspective, of one, of the intermediate purlins and one of theendlfpuilins, respc Like characters of 7 like parts in the several, figures ofjth'eg draw' m S V \eferri-ng to the drawings;which" show only as much of the car as'fijs .ine cessaryior the understanding of 1nyinvention,"des ignates the side plates of the 'c'a'r, 26. theciid plates, 27 the ridge pole;28ftlie outer fside sheathing, 29 the inner Lside 'sheathi'ng, 301, the end sheathing andSllandfiltheside. and end fasciaplates, respectivl ltfjijvill be understood that this particular v construe- 1 tion of car is used simply for the purposeof, illustratingthe application 7 of my invention rete'rencef designate to a car of standard typef fllhe r'ooistrucm ture constituting .niy invention, i1iiglit .l')e employed, with suitable; ch'a esf obv ous fi t.

struction from that show. The roof structure of my presentjinven? tion, in its preferredfor 1n nsist'sfofa lines consist, in each instanc of ailQI-beani (Fig. 9 turned si dewise.l aning-gowns wardly projectingwebs 33 cutr-awayat each end so that the connectinggiwebsia l.

0n the side plates 25,25. The-connecting web 34 projcts beyond the upstanding webs 35 at each end of the carline and the projecting portions are bent over to form the flanges 36 which overlap the side plate and are secured thereto by the bolts 37. As the downwardly-projecting webs 33 of the I- beam carline abut against the inner surfaces of the side plates 25 a. very rigid structure is produced whiclris capable of withstand- 'ing, to a considerable extent, thetendency which railway box cars haveto weave. In order to increase the strength and rigidity of the structure gusset plates 38 maybe employed which are secured to the vertical webs of the 'carlines by the rivets 39 and are fastened on the side plates 25 by the bolts 40 (Fig. 8).

The purlins B, B are formed preferably of T-section bars. The purlins B (Fig. 12) which extend from one carline to the next are provided at each end with a hook 41 formed by cutting ofl the ends of the upstanding web 42 and bending into substantially U-shape the projecting extremities of the top web 43. The upstanding webs 35 of the carlines are preferably formed with the notches 44 at the places where thepurll i ns- 1g.

hook onto the carlines. The purlins B 13) at the ends of the car are formedy in each case, at one end withfa hook 41., At the other endthe projecting portion 45- of the top flange is left straight'and bears upon the end plate 26' to-which=it may be secured by, for example, the screw 46 (Fig. .5). I

The roof sheets preferably extend from side to side ofthe car, resting upon the carlines and purlins. The intermediate roof sheets C (Fig. 7) are provided at each trans: verse margin with a curved portion formed by giving the metal the reversed bends 47, 48. The extreme edges of the sheets are preferablybent to form horizontal flanges 49. The longitudinal edges of the roof sheets (having reference to the length of the car) are formed with depending flanges 50 which overlap the side fascia plates 31. The end roof sheets C are the same as the structures just described except that their outer edges instead of being formed with the reversed bends are flat and provided with flanges 51 overlapping the end fascia plates of the car.

The roof sheet caps D (Fig. 10) are channel members which, in each lnstance, extend over a carline and the edges of adjacent roof sheets, the caps bearing upon the horizontal flanges 49 at the edges of the roof sheets. The caps are formed at the ends with flanges 52 secured to the side wall structure of the car by the bolts 53 (Figs. 2 and 4). Preferably the ends of the caps are formed with openings 54 to permit the outflow of any water which may work into the channels formed by the .bends 48 in the edges of the.

roof sheets. The cap ieces D are secured .te" the carlines A pre erablyjby means of bolts 55 which extend through the cap pi ;ces and the horizontal webs of the carli'in'es. In

order to prevent water from entering the car through the bolt holes the under ades of the heads of the bolts 55. are formed with grooves 56 into which project flanges 57 formed on the cap pieces.

If the car is constructed with'a ridge Pe le the carljnesrest upon the latter, designated 27 in.the drawings, and may be secured thereto by bolts- 58. The running board 59 maybe supported on saddles 60 which extend over the roof sheet caps D.

v: It; will be understood from the above'description that-while the carlines arefirmly attached to the side walls of the car so as to rigidify the car body, the other elements of the roof, the roof sheets and purlins, are

' so arranged as to be capable of shifting in case the car body suffers the pulsating, 0blique distortions known as weaving. The

cap pieces D hold the purlins and roof sheets from displacement. At'th'e same time-they do not prevent the latter elements from.

shifting slightly so as to accommodate themselves to'the inevitable weaving of the car. There are no perforations in any of the ele-. ments forming the roof except the perforations for the bolts 55. The bosses or flanges 56 prevent any water from working in around-the bolts 55. If water works in der the edges of the cap pieces it is intercepted inthe U-shaped bends 48 of the roof sheet and is discharged through the open ings 54in the ends of the cap pieces.

While I have described my inventi-onsin' certain preferred constructions it will be readily understood that some modifications,

might be made without departure from the invention.

1' claim:

In afroofconstruction for railway cars, the'combination of carlines formed to provide channels opening upwardly-and roof sheets between said carlines, the margins of which are formed with substantially U shaped bends terminating in hrizontal flanges, the bends lying irrthe channels of the carli-nes, caps extending? over sai-d carlines and the edgesof-adjaceht roof sheets which bear upon said hbriz'ontal flanges; and means for binding tlrewcapsagainst'fsaid flanges.

FRED:

Witnesses V L. A. Famimnpe, G. 

